I:
mysite/
    manage.py
    mysite/
        urls.py
        settings.py
        __init__.py
        
        db/
            models.py
            __init__.py
            
        views/
            views.py
            __init__.py
            
        forms/
            form.py
            __init__.py
            
        static/
            css/*
            js/*
            images/*
            ...
            
        templates/
            index.html
            admin/* (admin.html)
            ...

II:            
mysite/
    manage.py
    mysite/
        urls.py
        settings.py
        __init__.py
        
    app1/
        urls.py
        __init__.py
        
        db/
            models.py
            __init__.py
            
        views/
            views.py
            __init__.py
            
        forms/
            form.py
            __init__.py
            
        static/
            css/*
            js/*
            images/*
            ...
            
        templates/
            index.html
            admin/* (admin.html)
            ...
    app2/
        urls.py
        __init__.py
        
        db/
            models.py
            __init__.py
            
        views/
            views.py
            __init__.py
            
        forms/
            form.py
            __init__.py
            
        static/
            css/*
            js/*
            images/*
            ...
            
        templates/
            index.html
            admin/* (admin.html)
            ...
            
            
        
        